150 lines
4.9 KiB
C++
150 lines
4.9 KiB
C++
/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2019, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the
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following conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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----------------------------------------------------------------------
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*/
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/** @file Defines a post processing step to compute UV coordinates
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from abstract mappings, such as box or spherical*/
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#ifndef AI_COMPUTEUVMAPPING_H_INC
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#define AI_COMPUTEUVMAPPING_H_INC
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#include "Common/BaseProcess.h"
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#include <assimp/mesh.h>
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#include <assimp/material.h>
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#include <assimp/types.h>
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class ComputeUVMappingTest;
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namespace Assimp {
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// ---------------------------------------------------------------------------
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/** ComputeUVMappingProcess - converts special mappings, such as spherical,
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* cylindrical or boxed to proper UV coordinates for rendering.
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*/
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class ComputeUVMappingProcess : public BaseProcess
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{
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public:
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ComputeUVMappingProcess();
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~ComputeUVMappingProcess();
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public:
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// -------------------------------------------------------------------
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/** Returns whether the processing step is present in the given flag field.
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* @param pFlags The processing flags the importer was called with. A bitwise
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* combination of #aiPostProcessSteps.
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* @return true if the process is present in this flag fields, false if not.
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*/
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bool IsActive( unsigned int pFlags) const;
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// -------------------------------------------------------------------
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/** Executes the post processing step on the given imported data.
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* At the moment a process is not supposed to fail.
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* @param pScene The imported data to work at.
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*/
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void Execute( aiScene* pScene);
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protected:
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// -------------------------------------------------------------------
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/** Computes spherical UV coordinates for a mesh
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*
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* @param mesh Mesh to be processed
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* @param axis Main axis
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* @param out Receives output UV coordinates
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*/
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void ComputeSphereMapping(aiMesh* mesh,const aiVector3D& axis,
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aiVector3D* out);
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// -------------------------------------------------------------------
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/** Computes cylindrical UV coordinates for a mesh
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*
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* @param mesh Mesh to be processed
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* @param axis Main axis
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* @param out Receives output UV coordinates
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*/
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void ComputeCylinderMapping(aiMesh* mesh,const aiVector3D& axis,
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aiVector3D* out);
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// -------------------------------------------------------------------
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/** Computes planar UV coordinates for a mesh
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*
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* @param mesh Mesh to be processed
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* @param axis Main axis
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* @param out Receives output UV coordinates
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*/
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void ComputePlaneMapping(aiMesh* mesh,const aiVector3D& axis,
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aiVector3D* out);
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// -------------------------------------------------------------------
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/** Computes cubic UV coordinates for a mesh
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*
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* @param mesh Mesh to be processed
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* @param out Receives output UV coordinates
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*/
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void ComputeBoxMapping(aiMesh* mesh, aiVector3D* out);
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private:
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// temporary structure to describe a mapping
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struct MappingInfo
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{
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explicit MappingInfo(aiTextureMapping _type)
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: type (_type)
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, axis (0.f,1.f,0.f)
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, uv (0u)
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{}
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aiTextureMapping type;
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aiVector3D axis;
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unsigned int uv;
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bool operator== (const MappingInfo& other)
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{
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return type == other.type && axis == other.axis;
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}
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};
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};
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} // end of namespace Assimp
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#endif // AI_COMPUTEUVMAPPING_H_INC
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